# Hadrian’s mausoleum is built as a monumental tomb on the Tiber Date: 135 ## The fact In the 130s [Hadrian](/people/hadrian)’s mausoleum rose on the right bank of the Tiber, with the Pons Aelius as its approach. The dated tomb is not the later papal fortress and not Villa Adriana. Hadrian’s documented role is: He ordered a new dynastic tomb across the Tiber, later Castel Sant’Angelo. Later popes fortified it; the Hadrianic cylinder is the dated build. Do not convert papal fortress use into his act. Later editors, printers, and excavators remain named where they appear. Hadrian's documented role is: He ordered a new dynastic tomb across the Tiber, later Castel Sant’Angelo. Later popes fortified it; the Hadrianic cylinder is the dated build. ## Context Augustan precedent of a dynastic mausoleum, unnamed contractors, and later ash-burials of Antonines share the file. A tomb is not unique modern burial law. Later angels and bastions are not 135. Named others on the file: Unnamed contractors, later Antonine burials, and papal fortifiers as later users share the fabric. The public setting is the file around 0135-06-01. Unnamed clerks, soldiers, printers, or later editors may appear without becoming this instrument. The instrument stays Hadrian’s mausoleum is built as a monumental tomb on the Tiber. The setting of Hadrian’s mausoleum is built as a monumental tomb on the Tiber is the public file around 0135-06-01. Shared offices, unnamed crews, printers, or later editors may appear without becoming this instrument. Driver [industrial-policy-activism](/drivers/industrial-policy-activism) is attached because the significance names a mechanism from this act, not because a standing list needed coverage. Later competitions, monuments, translations, UNESCO listings, museums, and adaptations are not converted into extra lifetime acts. ## Evidence and sources Britannica’s Castel Sant’Angelo and Hadrian pages independently identify a Hadrianic tomb distinct from later fortress use. Official: Britannica — Castel Sant’Angelo, Hadrian’s mausoleum (https://www.britannica.com/topic/Castel-SantAngelo; Encyclopaedia Britannica). Independent: Britannica — Hadrian, mausoleum (https://www.britannica.com/biography/Hadrian; Encyclopaedia Britannica). The two URLs are different pages. Where the carrier is a later edition or a received narrative, that limit is stated rather than upgraded to an autograph. Official carrier: Britannica — Castel Sant’Angelo, Hadrian’s mausoleum (https://www.britannica.com/topic/Castel-SantAngelo; Encyclopaedia Britannica). Independent carrier: Britannica — Hadrian, mausoleum (https://www.britannica.com/biography/Hadrian; Encyclopaedia Britannica). Official or archival record: Britannica — Castel Sant’Angelo, Hadrian’s mausoleum (https://www.britannica.com/topic/Castel-SantAngelo; Encyclopaedia Britannica). ## Significance Improving industrial-policy path: a monumental public tomb-and-bridge fabric. Complex because later reuse dominates the visitor file. Welfare reading improving. The attached mechanism is A dated monumental tomb-and-bridge complex put a public dynastic fabric into the Vatican-side riverbank. Lag to any modern indicator is not treated as zero. This path is attached because the mechanism is named from this act, not because a driver list needed coverage. The welfare reading on this path is improving. Confidence is stated on the impact path, not hidden in adjectives. Do not convert papal fortress use into his act. Mixed effects of Hadrian’s mausoleum is built as a monumental tomb on the Tiber are separate paths. ## What is established and what is not Established: Hadrianic mausoleum construction. Not established: that papal bastions are his act. Established: a sourced public record of Hadrian’s mausoleum is built as a monumental tomb on the Tiber under 0135-06-01. Established: a sourced public record of Hadrian’s mausoleum is built as a monumental tomb on the Tiber under 0135-06-01. Shared responsibility is part of Hadrian’s mausoleum is built as a monumental tomb on the Tiber. Naming Hadrian does not delete co-authors, institutions, or later transmitters. The lag from 0135-06-01 to any measured indicator is not treated as zero. Alternative explanations — weather, other armies, later statutes, or independent cultural change — remain live where the sources do not close them. The attached driver is industrial-policy-activism. The welfare reading used in this dossier is improving. That reading is an impact-path choice, not a property stored on the Fact itself. If a number is not in the two records named above, it is not supplied here. ## People - Hadrian: https://factrail.ai/people/hadrian ## Drivers - Industrial-Policy Activism: https://factrail.ai/drivers/industrial-policy-activism ## Sources - https://www.britannica.com/topic/Castel-SantAngelo - https://www.britannica.com/biography/Hadrian ## Methodology https://factrail.ai/methodology Canonical: https://factrail.ai/facts/had-mausoleum-135